I take the C30 T5. The look is fresh and with a larger engine. A3 isnt my favorite Audi either so C30 for me.
BTW I heard every C30 in UK has been sold out. This baby Volvo will be a succees. I wonder if it will come to the States

Also the C30 recently got a design award for the best rear. Personally I have to get used to the rear before liking it completly.